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From Plüm, Rüdiger, VF-Group <ruediger.pl...@vodafone.com>
Subject Re: ping for http in mod_proxy
Date Wed, 13 Feb 2008 17:27:32 GMT
 

> -----Ursprüngliche Nachricht-----
> Von: Akins, Brian 
> Gesendet: Mittwoch, 13. Februar 2008 18:23
> An: dev@httpd.apache.org
> Betreff: Re: ping for http in mod_proxy
> 
> On 2/13/08 11:07 AM, "Jim Jagielski" <jim@jaguNET.com> wrote:
> 
> > I've started looking at adding "ping" support for
> > mod_proxy_http to complement whats in mod_proxy_ajp...
> > The idea is to send a simple OPTIONS * to the backend
> > and hope for a reply.
> 
> 
> Would it be more useful to have active healthchecking to 
> backend servers?

This does not help with race conditions on HTTP keepalive connections.
Nevertheless active healthchecking could be useful. But on a busy site
I guess a real request will notice before the healthcheck that one backend
is down or the frequence of health checks needs to be insane.

Regards

Rüdiger


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